#include "Collation.h"
#include "frameworks/base/cmds/statsd/src/atoms.pb.h"
#include <set>
#include <vector>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
using namespace google::protobuf;
using namespace std;
namespace android {
namespace stats_log_api_gen {
const int PULL_ATOM_START_ID = 1000;
int maxPushedAtomId = 2;
using android::os::statsd::Atom;
/**
* Turn lower and camel case into upper case with underscores.
*/
static string
make_constant_name(const string& str)
{
string result;
const int N = str.size();
bool underscore_next = false;
for (int i=0; i<N; i++) {
char c = str[i];
if (c >= 'A' && c <= 'Z') {
if (underscore_next) {
result += '_';
underscore_next = false;
}
} else if (c >= 'a' && c <= 'z') {
c = 'A' + c - 'a';
underscore_next = true;
} else if (c == '_') {
underscore_next = false;
}
result += c;
}
return result;
}
static const char*
cpp_type_name(java_type_t type)
{
switch (type) {
case JAVA_TYPE_BOOLEAN:
return "bool";
case JAVA_TYPE_INT:
case JAVA_TYPE_ENUM:
return "int32_t";
case JAVA_TYPE_LONG:
return "int64_t";
case JAVA_TYPE_FLOAT:
return "float";
case JAVA_TYPE_DOUBLE:
return "double";
case JAVA_TYPE_STRING:
return "char const*";
default:
return "UNKNOWN";
}
}
static const char*
java_type_name(java_type_t type)
{
switch (type) {
case JAVA_TYPE_BOOLEAN:
return "boolean";
case JAVA_TYPE_INT:
case JAVA_TYPE_ENUM:
return "int";
case JAVA_TYPE_LONG:
return "long";
case JAVA_TYPE_FLOAT:
return "float";
case JAVA_TYPE_DOUBLE:
return "double";
case JAVA_TYPE_STRING:
return "java.lang.String";
default:
return "UNKNOWN";
}
}
static int write_stats_log_cpp(FILE *out, const Atoms &atoms,
const AtomDecl &attributionDecl) {
// Print prelude
fprintf(out, "// This file is autogenerated\n");
fprintf(out, "\n");
fprintf(out, "#include <mutex>\n");
fprintf(out, "#include <chrono>\n");
fprintf(out, "#include <thread>\n");
fprintf(out, "#include <cutils/properties.h>\n");
fprintf(out, "#include <stats_event_list.h>\n");
fprintf(out, "#include <log/log.h>\n");
fprintf(out, "#include <statslog.h>\n");
fprintf(out, "#include <utils/SystemClock.h>\n");
fprintf(out, "\n");
fprintf(out, "namespace android {\n");
fprintf(out, "namespace util {\n");
fprintf(out, "// the single event tag id for all stats logs\n");
fprintf(out, "const static int kStatsEventTag = 1937006964;\n");
fprintf(out, "const static bool kStatsdEnabled = property_get_bool(\"ro.statsd.enable\", true);\n");
std::set<string> kTruncatingAtomNames = {"mobile_radio_power_state_changed",
"audio_state_changed",
"call_state_changed",
"phone_signal_strength_changed",
"mobile_bytes_transfer_by_fg_bg",
"mobile_bytes_transfer"};
fprintf(out,
"const std::set<int> "
"AtomsInfo::kNotTruncatingTimestampAtomWhiteList = {\n");
for (set<AtomDecl>::const_iterator atom = atoms.decls.begin();
atom != atoms.decls.end(); atom++) {
if (kTruncatingAtomNames.find(atom->name) ==
kTruncatingAtomNames.end()) {
string constant = make_constant_name(atom->name);
fprintf(out, " %s,\n", constant.c_str());
}
}
fprintf(out, "};\n");
fprintf(out, "\n");
fprintf(out,
"const std::set<int> AtomsInfo::kAtomsWithAttributionChain = {\n");
for (set<AtomDecl>::const_iterator atom = atoms.decls.begin();
atom != atoms.decls.end(); atom++) {
for (vector<AtomField>::const_iterator field = atom->fields.begin();
field != atom->fields.end(); field++) {
if (field->javaType == JAVA_TYPE_ATTRIBUTION_CHAIN) {
string constant = make_constant_name(atom->name);
fprintf(out, " %s,\n", constant.c_str());
break;
}
}
}
fprintf(out, "};\n");
fprintf(out, "\n");
fprintf(out, "static std::map<int, int> getAtomUidField() {\n");
fprintf(out, " std::map<int, int> uidField;\n");
for (set<AtomDecl>::const_iterator atom = atoms.decls.begin();
atom != atoms.decls.end(); atom++) {
if (atom->uidField == 0) {
continue;
}
fprintf(out,
"\n // Adding uid field for atom "
"(%d)%s\n",
atom->code, atom->name.c_str());
fprintf(out, " uidField[static_cast<int>(%s)] = %d;\n",
make_constant_name(atom->name).c_str(), atom->uidField);
}
fprintf(out, " return uidField;\n");
fprintf(out, "};\n");
fprintf(out,
"const std::map<int, int> AtomsInfo::kAtomsWithUidField = "
"getAtomUidField();\n");
fprintf(out,
"static std::map<int, StateAtomFieldOptions> "
"getStateAtomFieldOptions() {\n");
fprintf(out, " std::map<int, StateAtomFieldOptions> options;\n");
fprintf(out, " StateAtomFieldOptions opt;\n");
for (set<AtomDecl>::const_iterator atom = atoms.decls.begin();
atom != atoms.decls.end(); atom++) {
if (atom->primaryFields.size() == 0 && atom->exclusiveField == 0) {
continue;
}
fprintf(out,
"\n // Adding primary and exclusive fields for atom "
"(%d)%s\n",
atom->code, atom->name.c_str());
fprintf(out, " opt.primaryFields.clear();\n");
for (const auto& field : atom->primaryFields) {
fprintf(out, " opt.primaryFields.push_back(%d);\n", field);
}
fprintf(out, " opt.exclusiveField = %d;\n", atom->exclusiveField);
fprintf(out, " options[static_cast<int>(%s)] = opt;\n",
make_constant_name(atom->name).c_str());
}
fprintf(out, " return options;\n");
fprintf(out, " }\n");
fprintf(out,
"const std::map<int, StateAtomFieldOptions> "
"AtomsInfo::kStateAtomsFieldOptions = "
"getStateAtomFieldOptions();\n");
fprintf(out, "int64_t lastRetryTimestampNs = -1;\n");
fprintf(out, "const int64_t kMinRetryIntervalNs = NS_PER_SEC * 60 * 20; // 20 minutes\n");
fprintf(out, "static std::mutex mLogdRetryMutex;\n");
// Print write methods
fprintf(out, "\n");
for (set<vector<java_type_t>>::const_iterator signature = atoms.signatures.begin();
signature != atoms.signatures.end(); signature++) {
int argIndex;
fprintf(out, "int\n");
fprintf(out, "try_stats_write(int32_t code");
argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
if (chainField.javaType == JAVA_TYPE_STRING) {
fprintf(out, ", const std::vector<%s>& %s",
cpp_type_name(chainField.javaType),
chainField.name.c_str());
} else {
fprintf(out, ", const %s* %s, size_t %s_length",
cpp_type_name(chainField.javaType),
chainField.name.c_str(), chainField.name.c_str());
}
}
} else {
fprintf(out, ", %s arg%d", cpp_type_name(*arg), argIndex);
}
argIndex++;
}
fprintf(out, ")\n");
fprintf(out, "{\n");
argIndex = 1;
fprintf(out, " if (kStatsdEnabled) {\n");
fprintf(out, " stats_event_list event(kStatsEventTag);\n");
fprintf(out, " event << android::elapsedRealtimeNano();\n\n");
fprintf(out, " event << code;\n\n");
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (const auto &chainField : attributionDecl.fields) {
if (chainField.javaType == JAVA_TYPE_STRING) {
fprintf(out, " if (%s_length != %s.size()) {\n",
attributionDecl.fields.front().name.c_str(), chainField.name.c_str());
fprintf(out, " return -EINVAL;\n");
fprintf(out, " }\n");
}
}
fprintf(out, "\n event.begin();\n");
fprintf(out, " for (size_t i = 0; i < %s_length; ++i) {\n",
attributionDecl.fields.front().name.c_str());
fprintf(out, " event.begin();\n");
for (const auto &chainField : attributionDecl.fields) {
if (chainField.javaType == JAVA_TYPE_STRING) {
fprintf(out, " if (%s[i] != NULL) {\n", chainField.name.c_str());
fprintf(out, " event << %s[i];\n", chainField.name.c_str());
fprintf(out, " } else {\n");
fprintf(out, " event << \"\";\n");
fprintf(out, " }\n");
} else {
fprintf(out, " event << %s[i];\n", chainField.name.c_str());
}
}
fprintf(out, " event.end();\n");
fprintf(out, " }\n");
fprintf(out, " event.end();\n\n");
} else {
if (*arg == JAVA_TYPE_STRING) {
fprintf(out, " if (arg%d == NULL) {\n", argIndex);
fprintf(out, " arg%d = \"\";\n", argIndex);
fprintf(out, " }\n");
}
fprintf(out, " event << arg%d;\n", argIndex);
}
argIndex++;
}
fprintf(out, " return event.write(LOG_ID_STATS);\n");
fprintf(out, " } else {\n");
fprintf(out, " return 1;\n");
fprintf(out, " }\n");
fprintf(out, "}\n");
fprintf(out, "\n");
}
for (set<vector<java_type_t>>::const_iterator signature = atoms.signatures.begin();
signature != atoms.signatures.end(); signature++) {
int argIndex;
fprintf(out, "int \n");
fprintf(out, "stats_write(int32_t code");
argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
if (chainField.javaType == JAVA_TYPE_STRING) {
fprintf(out, ", const std::vector<%s>& %s",
cpp_type_name(chainField.javaType),
chainField.name.c_str());
} else {
fprintf(out, ", const %s* %s, size_t %s_length",
cpp_type_name(chainField.javaType),
chainField.name.c_str(), chainField.name.c_str());
}
}
} else {
fprintf(out, ", %s arg%d", cpp_type_name(*arg), argIndex);
}
argIndex++;
}
fprintf(out, ")\n");
fprintf(out, "{\n");
fprintf(out, " int ret = 0;\n");
fprintf(out, " for(int retry = 0; retry < 2; ++retry) {\n");
fprintf(out, " ret = try_stats_write(code");
argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
if (chainField.javaType == JAVA_TYPE_STRING) {
fprintf(out, ", %s",
chainField.name.c_str());
} else {
fprintf(out, ", %s, %s_length",
chainField.name.c_str(), chainField.name.c_str());
}
}
} else {
fprintf(out, ", arg%d", argIndex);
}
argIndex++;
}
fprintf(out, ");\n");
fprintf(out, " if (ret >= 0) { return retry; }\n");
fprintf(out, " {\n");
fprintf(out, " std::lock_guard<std::mutex> lock(mLogdRetryMutex);\n");
fprintf(out, " if ((android::elapsedRealtimeNano() - lastRetryTimestampNs) <= "
"kMinRetryIntervalNs) break;\n");
fprintf(out, " lastRetryTimestampNs = android::elapsedRealtimeNano();\n");
fprintf(out, " }\n");
fprintf(out, " std::this_thread::sleep_for(std::chrono::milliseconds(10));\n");
fprintf(out, " }\n");
fprintf(out, " return ret;\n");
fprintf(out, "}\n");
fprintf(out, "\n");
}
for (set<vector<java_type_t>>::const_iterator signature = atoms.non_chained_signatures.begin();
signature != atoms.non_chained_signatures.end(); signature++) {
int argIndex;
fprintf(out, "int\n");
fprintf(out, "try_stats_write_non_chained(int32_t code");
argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
fprintf(out, ", %s arg%d", cpp_type_name(*arg), argIndex);
argIndex++;
}
fprintf(out, ")\n");
fprintf(out, "{\n");
argIndex = 1;
fprintf(out, " if (kStatsdEnabled) {\n");
fprintf(out, " stats_event_list event(kStatsEventTag);\n");
fprintf(out, " event << android::elapsedRealtimeNano();\n\n");
fprintf(out, " event << code;\n\n");
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (argIndex == 1) {
fprintf(out, " event.begin();\n\n");
fprintf(out, " event.begin();\n");
}
if (*arg == JAVA_TYPE_STRING) {
fprintf(out, " if (arg%d == NULL) {\n", argIndex);
fprintf(out, " arg%d = \"\";\n", argIndex);
fprintf(out, " }\n");
}
fprintf(out, " event << arg%d;\n", argIndex);
if (argIndex == 2) {
fprintf(out, " event.end();\n\n");
fprintf(out, " event.end();\n\n");
}
argIndex++;
}
fprintf(out, " return event.write(LOG_ID_STATS);\n");
fprintf(out, " } else {\n");
fprintf(out, " return 1;\n");
fprintf(out, " }\n");
fprintf(out, "}\n");
fprintf(out, "\n");
}
for (set<vector<java_type_t>>::const_iterator signature = atoms.non_chained_signatures.begin();
signature != atoms.non_chained_signatures.end(); signature++) {
int argIndex;
fprintf(out, "int\n");
fprintf(out, "stats_write_non_chained(int32_t code");
argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
fprintf(out, ", %s arg%d", cpp_type_name(*arg), argIndex);
argIndex++;
}
fprintf(out, ")\n");
fprintf(out, "{\n");
fprintf(out, " int ret = 0;\n");
fprintf(out, " for(int retry = 0; retry < 2; ++retry) {\n");
fprintf(out, " ret = try_stats_write_non_chained(code");
argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
fprintf(out, ", arg%d", argIndex);
argIndex++;
}
fprintf(out, ");\n");
fprintf(out, " if (ret >= 0) { return retry; }\n");
fprintf(out, " {\n");
fprintf(out, " std::lock_guard<std::mutex> lock(mLogdRetryMutex);\n");
fprintf(out, " if ((android::elapsedRealtimeNano() - lastRetryTimestampNs) <= "
"kMinRetryIntervalNs) break;\n");
fprintf(out, " lastRetryTimestampNs = android::elapsedRealtimeNano();\n");
fprintf(out, " }\n");
fprintf(out, " std::this_thread::sleep_for(std::chrono::milliseconds(10));\n");
fprintf(out, " }\n");
fprintf(out, " return ret;\n");
fprintf(out, "}\n");
fprintf(out, "\n");
}
// Print footer
fprintf(out, "\n");
fprintf(out, "} // namespace util\n");
fprintf(out, "} // namespace android\n");
return 0;
}
void build_non_chained_decl_map(const Atoms& atoms,
std::map<int, set<AtomDecl>::const_iterator>* decl_map){
for (set<AtomDecl>::const_iterator atom = atoms.non_chained_decls.begin();
atom != atoms.non_chained_decls.end(); atom++) {
decl_map->insert(std::make_pair(atom->code, atom));
}
}
static void write_cpp_usage(
FILE* out, const string& method_name, const string& atom_code_name,
const AtomDecl& atom, const AtomDecl &attributionDecl) {
fprintf(out, " * Usage: %s(StatsLog.%s", method_name.c_str(), atom_code_name.c_str());
for (vector<AtomField>::const_iterator field = atom.fields.begin();
field != atom.fields.end(); field++) {
if (field->javaType == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
if (chainField.javaType == JAVA_TYPE_STRING) {
fprintf(out, ", const std::vector<%s>& %s",
cpp_type_name(chainField.javaType),
chainField.name.c_str());
} else {
fprintf(out, ", const %s* %s, size_t %s_length",
cpp_type_name(chainField.javaType),
chainField.name.c_str(), chainField.name.c_str());
}
}
} else {
fprintf(out, ", %s %s", cpp_type_name(field->javaType), field->name.c_str());
}
}
fprintf(out, ");\n");
}
static void write_cpp_method_header(
FILE* out, const string& method_name, const set<vector<java_type_t>>& signatures,
const AtomDecl &attributionDecl) {
for (set<vector<java_type_t>>::const_iterator signature = signatures.begin();
signature != signatures.end(); signature++) {
fprintf(out, "int %s(int32_t code ", method_name.c_str());
int argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
if (chainField.javaType == JAVA_TYPE_STRING) {
fprintf(out, ", const std::vector<%s>& %s",
cpp_type_name(chainField.javaType), chainField.name.c_str());
} else {
fprintf(out, ", const %s* %s, size_t %s_length",
cpp_type_name(chainField.javaType),
chainField.name.c_str(), chainField.name.c_str());
}
}
} else {
fprintf(out, ", %s arg%d", cpp_type_name(*arg), argIndex);
}
argIndex++;
}
fprintf(out, ");\n");
}
}
static int
write_stats_log_header(FILE* out, const Atoms& atoms, const AtomDecl &attributionDecl)
{
// Print prelude
fprintf(out, "// This file is autogenerated\n");
fprintf(out, "\n");
fprintf(out, "#pragma once\n");
fprintf(out, "\n");
fprintf(out, "#include <stdint.h>\n");
fprintf(out, "#include <vector>\n");
fprintf(out, "#include <map>\n");
fprintf(out, "#include <set>\n");
fprintf(out, "\n");
fprintf(out, "namespace android {\n");
fprintf(out, "namespace util {\n");
fprintf(out, "\n");
fprintf(out, "/*\n");
fprintf(out, " * API For logging statistics events.\n");
fprintf(out, " */\n");
fprintf(out, "\n");
fprintf(out, "/**\n");
fprintf(out, " * Constants for atom codes.\n");
fprintf(out, " */\n");
fprintf(out, "enum {\n");
std::map<int, set<AtomDecl>::const_iterator> atom_code_to_non_chained_decl_map;
build_non_chained_decl_map(atoms, &atom_code_to_non_chained_decl_map);
size_t i = 0;
// Print constants
for (set<AtomDecl>::const_iterator atom = atoms.decls.begin();
atom != atoms.decls.end(); atom++) {
string constant = make_constant_name(atom->name);
fprintf(out, "\n");
fprintf(out, " /**\n");
fprintf(out, " * %s %s\n", atom->message.c_str(), atom->name.c_str());
write_cpp_usage(out, "stats_write", constant, *atom, attributionDecl);
auto non_chained_decl = atom_code_to_non_chained_decl_map.find(atom->code);
if (non_chained_decl != atom_code_to_non_chained_decl_map.end()) {
write_cpp_usage(out, "stats_write_non_chained", constant, *non_chained_decl->second,
attributionDecl);
}
fprintf(out, " */\n");
char const* const comma = (i == atoms.decls.size() - 1) ? "" : ",";
fprintf(out, " %s = %d%s\n", constant.c_str(), atom->code, comma);
if (atom->code < PULL_ATOM_START_ID && atom->code > maxPushedAtomId) {
maxPushedAtomId = atom->code;
}
i++;
}
fprintf(out, "\n");
fprintf(out, "};\n");
fprintf(out, "\n");
fprintf(out, "struct StateAtomFieldOptions {\n");
fprintf(out, " std::vector<int> primaryFields;\n");
fprintf(out, " int exclusiveField;\n");
fprintf(out, "};\n");
fprintf(out, "\n");
fprintf(out, "struct AtomsInfo {\n");
fprintf(out,
" const static std::set<int> "
"kNotTruncatingTimestampAtomWhiteList;\n");
fprintf(out, " const static std::map<int, int> kAtomsWithUidField;\n");
fprintf(out,
" const static std::set<int> kAtomsWithAttributionChain;\n");
fprintf(out,
" const static std::map<int, StateAtomFieldOptions> "
"kStateAtomsFieldOptions;\n");
fprintf(out, "};\n");
fprintf(out, "const static int kMaxPushedAtomId = %d;\n\n",
maxPushedAtomId);
// Print write methods
fprintf(out, "//\n");
fprintf(out, "// Write methods\n");
fprintf(out, "//\n");
write_cpp_method_header(out, "stats_write", atoms.signatures, attributionDecl);
fprintf(out, "//\n");
fprintf(out, "// Write flattened methods\n");
fprintf(out, "//\n");
write_cpp_method_header(out, "stats_write_non_chained", atoms.non_chained_signatures,
attributionDecl);
fprintf(out, "\n");
fprintf(out, "} // namespace util\n");
fprintf(out, "} // namespace android\n");
return 0;
}
static void write_java_usage(
FILE* out, const string& method_name, const string& atom_code_name,
const AtomDecl& atom, const AtomDecl &attributionDecl) {
fprintf(out, " * Usage: StatsLog.%s(StatsLog.%s",
method_name.c_str(), atom_code_name.c_str());
for (vector<AtomField>::const_iterator field = atom.fields.begin();
field != atom.fields.end(); field++) {
if (field->javaType == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
fprintf(out, ", %s[] %s",
java_type_name(chainField.javaType), chainField.name.c_str());
}
} else {
fprintf(out, ", %s %s", java_type_name(field->javaType), field->name.c_str());
}
}
fprintf(out, ");\n");
}
static void write_java_method(
FILE* out, const string& method_name, const set<vector<java_type_t>>& signatures,
const AtomDecl &attributionDecl) {
for (set<vector<java_type_t>>::const_iterator signature = signatures.begin();
signature != signatures.end(); signature++) {
fprintf(out, " public static native int %s(int code", method_name.c_str());
int argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
fprintf(out, ", %s[] %s",
java_type_name(chainField.javaType), chainField.name.c_str());
}
} else {
fprintf(out, ", %s arg%d", java_type_name(*arg), argIndex);
}
argIndex++;
}
fprintf(out, ");\n");
}
}
static int
write_stats_log_java(FILE* out, const Atoms& atoms, const AtomDecl &attributionDecl)
{
// Print prelude
fprintf(out, "// This file is autogenerated\n");
fprintf(out, "\n");
fprintf(out, "package android.util;\n");
fprintf(out, "\n");
fprintf(out, "\n");
fprintf(out, "/**\n");
fprintf(out, " * API For logging statistics events.\n");
fprintf(out, " * @hide\n");
fprintf(out, " */\n");
fprintf(out, "public class StatsLogInternal {\n");
fprintf(out, " // Constants for atom codes.\n");
std::map<int, set<AtomDecl>::const_iterator> atom_code_to_non_chained_decl_map;
build_non_chained_decl_map(atoms, &atom_code_to_non_chained_decl_map);
// Print constants for the atom codes.
for (set<AtomDecl>::const_iterator atom = atoms.decls.begin();
atom != atoms.decls.end(); atom++) {
string constant = make_constant_name(atom->name);
fprintf(out, "\n");
fprintf(out, " /**\n");
fprintf(out, " * %s %s\n", atom->message.c_str(), atom->name.c_str());
write_java_usage(out, "write", constant, *atom, attributionDecl);
auto non_chained_decl = atom_code_to_non_chained_decl_map.find(atom->code);
if (non_chained_decl != atom_code_to_non_chained_decl_map.end()) {
write_java_usage(out, "write_non_chained", constant, *non_chained_decl->second,
attributionDecl);
}
fprintf(out, " */\n");
fprintf(out, " public static final int %s = %d;\n", constant.c_str(), atom->code);
}
fprintf(out, "\n");
// Print constants for the enum values.
fprintf(out, " // Constants for enum values.\n\n");
for (set<AtomDecl>::const_iterator atom = atoms.decls.begin();
atom != atoms.decls.end(); atom++) {
for (vector<AtomField>::const_iterator field = atom->fields.begin();
field != atom->fields.end(); field++) {
if (field->javaType == JAVA_TYPE_ENUM) {
fprintf(out, " // Values for %s.%s\n", atom->message.c_str(),
field->name.c_str());
for (map<int, string>::const_iterator value = field->enumValues.begin();
value != field->enumValues.end(); value++) {
fprintf(out, " public static final int %s__%s__%s = %d;\n",
make_constant_name(atom->message).c_str(),
make_constant_name(field->name).c_str(),
make_constant_name(value->second).c_str(),
value->first);
}
fprintf(out, "\n");
}
}
}
// Print write methods
fprintf(out, " // Write methods\n");
write_java_method(out, "write", atoms.signatures, attributionDecl);
write_java_method(out, "write_non_chained", atoms.non_chained_signatures, attributionDecl);
fprintf(out, "}\n");
return 0;
}
static const char*
jni_type_name(java_type_t type)
{
switch (type) {
case JAVA_TYPE_BOOLEAN:
return "jboolean";
case JAVA_TYPE_INT:
case JAVA_TYPE_ENUM:
return "jint";
case JAVA_TYPE_LONG:
return "jlong";
case JAVA_TYPE_FLOAT:
return "jfloat";
case JAVA_TYPE_DOUBLE:
return "jdouble";
case JAVA_TYPE_STRING:
return "jstring";
default:
return "UNKNOWN";
}
}
static const char*
jni_array_type_name(java_type_t type)
{
switch (type) {
case JAVA_TYPE_INT:
return "jintArray";
case JAVA_TYPE_STRING:
return "jobjectArray";
default:
return "UNKNOWN";
}
}
static string
jni_function_name(const string& method_name, const vector<java_type_t>& signature)
{
string result("StatsLog_" + method_name);
for (vector<java_type_t>::const_iterator arg = signature.begin();
arg != signature.end(); arg++) {
switch (*arg) {
case JAVA_TYPE_BOOLEAN:
result += "_boolean";
break;
case JAVA_TYPE_INT:
case JAVA_TYPE_ENUM:
result += "_int";
break;
case JAVA_TYPE_LONG:
result += "_long";
break;
case JAVA_TYPE_FLOAT:
result += "_float";
break;
case JAVA_TYPE_DOUBLE:
result += "_double";
break;
case JAVA_TYPE_STRING:
result += "_String";
break;
case JAVA_TYPE_ATTRIBUTION_CHAIN:
result += "_AttributionChain";
break;
default:
result += "_UNKNOWN";
break;
}
}
return result;
}
static const char*
java_type_signature(java_type_t type)
{
switch (type) {
case JAVA_TYPE_BOOLEAN:
return "Z";
case JAVA_TYPE_INT:
case JAVA_TYPE_ENUM:
return "I";
case JAVA_TYPE_LONG:
return "J";
case JAVA_TYPE_FLOAT:
return "F";
case JAVA_TYPE_DOUBLE:
return "D";
case JAVA_TYPE_STRING:
return "Ljava/lang/String;";
default:
return "UNKNOWN";
}
}
static string
jni_function_signature(const vector<java_type_t>& signature, const AtomDecl &attributionDecl)
{
string result("(I");
for (vector<java_type_t>::const_iterator arg = signature.begin();
arg != signature.end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
result += "[";
result += java_type_signature(chainField.javaType);
}
} else {
result += java_type_signature(*arg);
}
}
result += ")I";
return result;
}
static int
write_stats_log_jni(FILE* out, const string& java_method_name, const string& cpp_method_name,
const set<vector<java_type_t>>& signatures, const AtomDecl &attributionDecl)
{
// Print write methods
for (set<vector<java_type_t>>::const_iterator signature = signatures.begin();
signature != signatures.end(); signature++) {
int argIndex;
fprintf(out, "static int\n");
fprintf(out, "%s(JNIEnv* env, jobject clazz UNUSED, jint code",
jni_function_name(java_method_name, *signature).c_str());
argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
fprintf(out, ", %s %s", jni_array_type_name(chainField.javaType),
chainField.name.c_str());
}
} else {
fprintf(out, ", %s arg%d", jni_type_name(*arg), argIndex);
}
argIndex++;
}
fprintf(out, ")\n");
fprintf(out, "{\n");
// Prepare strings
argIndex = 1;
bool hadStringOrChain = false;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (*arg == JAVA_TYPE_STRING) {
hadStringOrChain = true;
fprintf(out, " const char* str%d;\n", argIndex);
fprintf(out, " if (arg%d != NULL) {\n", argIndex);
fprintf(out, " str%d = env->GetStringUTFChars(arg%d, NULL);\n",
argIndex, argIndex);
fprintf(out, " } else {\n");
fprintf(out, " str%d = NULL;\n", argIndex);
fprintf(out, " }\n");
} else if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
hadStringOrChain = true;
for (auto chainField : attributionDecl.fields) {
fprintf(out, " size_t %s_length = env->GetArrayLength(%s);\n",
chainField.name.c_str(), chainField.name.c_str());
if (chainField.name != attributionDecl.fields.front().name) {
fprintf(out, " if (%s_length != %s_length) {\n",
chainField.name.c_str(),
attributionDecl.fields.front().name.c_str());
fprintf(out, " return -EINVAL;\n");
fprintf(out, " }\n");
}
if (chainField.javaType == JAVA_TYPE_INT) {
fprintf(out, " jint* %s_array = env->GetIntArrayElements(%s, NULL);\n",
chainField.name.c_str(), chainField.name.c_str());
} else if (chainField.javaType == JAVA_TYPE_STRING) {
fprintf(out, " std::vector<%s> %s_vec;\n",
cpp_type_name(chainField.javaType), chainField.name.c_str());
fprintf(out, " std::vector<ScopedUtfChars*> scoped_%s_vec;\n",
chainField.name.c_str());
fprintf(out, " for (size_t i = 0; i < %s_length; ++i) {\n",
chainField.name.c_str());
fprintf(out, " jstring jstr = "
"(jstring)env->GetObjectArrayElement(%s, i);\n",
chainField.name.c_str());
fprintf(out, " if (jstr == NULL) {\n");
fprintf(out, " %s_vec.push_back(NULL);\n",
chainField.name.c_str());
fprintf(out, " } else {\n");
fprintf(out, " ScopedUtfChars* scoped_%s = "
"new ScopedUtfChars(env, jstr);\n",
chainField.name.c_str());
fprintf(out, " %s_vec.push_back(scoped_%s->c_str());\n",
chainField.name.c_str(), chainField.name.c_str());
fprintf(out, " scoped_%s_vec.push_back(scoped_%s);\n",
chainField.name.c_str(), chainField.name.c_str());
fprintf(out, " }\n");
fprintf(out, " }\n");
}
fprintf(out, "\n");
}
}
argIndex++;
}
// Emit this to quiet the unused parameter warning if there were no strings or attribution
// chains.
if (!hadStringOrChain) {
fprintf(out, " (void)env;\n");
}
// stats_write call
argIndex = 1;
fprintf(out, " int ret = android::util::%s(code", cpp_method_name.c_str());
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
if (chainField.javaType == JAVA_TYPE_INT) {
fprintf(out, ", (const %s*)%s_array, %s_length",
cpp_type_name(chainField.javaType),
chainField.name.c_str(), chainField.name.c_str());
} else if (chainField.javaType == JAVA_TYPE_STRING) {
fprintf(out, ", %s_vec", chainField.name.c_str());
}
}
} else {
const char *argName = (*arg == JAVA_TYPE_STRING) ? "str" : "arg";
fprintf(out, ", (%s)%s%d", cpp_type_name(*arg), argName, argIndex);
}
argIndex++;
}
fprintf(out, ");\n");
fprintf(out, "\n");
// Clean up strings
argIndex = 1;
for (vector<java_type_t>::const_iterator arg = signature->begin();
arg != signature->end(); arg++) {
if (*arg == JAVA_TYPE_STRING) {
fprintf(out, " if (str%d != NULL) {\n", argIndex);
fprintf(out, " env->ReleaseStringUTFChars(arg%d, str%d);\n",
argIndex, argIndex);
fprintf(out, " }\n");
} else if (*arg == JAVA_TYPE_ATTRIBUTION_CHAIN) {
for (auto chainField : attributionDecl.fields) {
if (chainField.javaType == JAVA_TYPE_INT) {
fprintf(out, " env->ReleaseIntArrayElements(%s, %s_array, 0);\n",
chainField.name.c_str(), chainField.name.c_str());
} else if (chainField.javaType == JAVA_TYPE_STRING) {
fprintf(out, " for (size_t i = 0; i < scoped_%s_vec.size(); ++i) {\n",
chainField.name.c_str());
fprintf(out, " delete scoped_%s_vec[i];\n", chainField.name.c_str());
fprintf(out, " }\n");
}
}
}
argIndex++;
}
fprintf(out, " return ret;\n");
fprintf(out, "}\n");
fprintf(out, "\n");
}
return 0;
}
void write_jni_registration(FILE* out, const string& java_method_name,
const set<vector<java_type_t>>& signatures, const AtomDecl &attributionDecl) {
for (set<vector<java_type_t>>::const_iterator signature = signatures.begin();
signature != signatures.end(); signature++) {
fprintf(out, " { \"%s\", \"%s\", (void*)%s },\n",
java_method_name.c_str(),
jni_function_signature(*signature, attributionDecl).c_str(),
jni_function_name(java_method_name, *signature).c_str());
}
}
static int
write_stats_log_jni(FILE* out, const Atoms& atoms, const AtomDecl &attributionDecl)
{
// Print prelude
fprintf(out, "// This file is autogenerated\n");
fprintf(out, "\n");
fprintf(out, "#include <statslog.h>\n");
fprintf(out, "\n");
fprintf(out, "#include <nativehelper/JNIHelp.h>\n");
fprintf(out, "#include <nativehelper/ScopedUtfChars.h>\n");
fprintf(out, "#include <utils/Vector.h>\n");
fprintf(out, "#include \"core_jni_helpers.h\"\n");
fprintf(out, "#include \"jni.h\"\n");
fprintf(out, "\n");
fprintf(out, "#define UNUSED __attribute__((__unused__))\n");
fprintf(out, "\n");
fprintf(out, "namespace android {\n");
fprintf(out, "\n");
write_stats_log_jni(out, "write", "stats_write", atoms.signatures, attributionDecl);
write_stats_log_jni(out, "write_non_chained", "stats_write_non_chained",
atoms.non_chained_signatures, attributionDecl);
// Print registration function table
fprintf(out, "/*\n");
fprintf(out, " * JNI registration.\n");
fprintf(out, " */\n");
fprintf(out, "static const JNINativeMethod gRegisterMethods[] = {\n");
write_jni_registration(out, "write", atoms.signatures, attributionDecl);
write_jni_registration(out, "write_non_chained", atoms.non_chained_signatures, attributionDecl);
fprintf(out, "};\n");
fprintf(out, "\n");
// Print registration function
fprintf(out, "int register_android_util_StatsLog(JNIEnv* env) {\n");
fprintf(out, " return RegisterMethodsOrDie(\n");
fprintf(out, " env,\n");
fprintf(out, " \"android/util/StatsLog\",\n");
fprintf(out, " gRegisterMethods, NELEM(gRegisterMethods));\n");
fprintf(out, "}\n");
fprintf(out, "\n");
fprintf(out, "} // namespace android\n");
return 0;
}
static void
print_usage()
{
fprintf(stderr, "usage: stats-log-api-gen OPTIONS\n");
fprintf(stderr, "\n");
fprintf(stderr, "OPTIONS\n");
fprintf(stderr, " --cpp FILENAME the header file to output\n");
fprintf(stderr, " --header FILENAME the cpp file to output\n");
fprintf(stderr, " --help this message\n");
fprintf(stderr, " --java FILENAME the java file to output\n");
fprintf(stderr, " --jni FILENAME the jni file to output\n");
}
/**
* Do the argument parsing and execute the tasks.
*/
static int
run(int argc, char const*const* argv)
{
string cppFilename;
string headerFilename;
string javaFilename;
string jniFilename;
int index = 1;
while (index < argc) {
if (0 == strcmp("--help", argv[index])) {
print_usage();
return 0;
} else if (0 == strcmp("--cpp", argv[index])) {
index++;
if (index >= argc) {
print_usage();
return 1;
}
cppFilename = argv[index];
} else if (0 == strcmp("--header", argv[index])) {
index++;
if (index >= argc) {
print_usage();
return 1;
}
headerFilename = argv[index];
} else if (0 == strcmp("--java", argv[index])) {
index++;
if (index >= argc) {
print_usage();
return 1;
}
javaFilename = argv[index];
} else if (0 == strcmp("--jni", argv[index])) {
index++;
if (index >= argc) {
print_usage();
return 1;
}
jniFilename = argv[index];
}
index++;
}
if (cppFilename.size() == 0
&& headerFilename.size() == 0
&& javaFilename.size() == 0
&& jniFilename.size() == 0) {
print_usage();
return 1;
}
// Collate the parameters
Atoms atoms;
int errorCount = collate_atoms(Atom::descriptor(), &atoms);
if (errorCount != 0) {
return 1;
}
AtomDecl attributionDecl;
vector<java_type_t> attributionSignature;
collate_atom(android::os::statsd::AttributionNode::descriptor(),
&attributionDecl, &attributionSignature);
// Write the .cpp file
if (cppFilename.size() != 0) {
FILE* out = fopen(cppFilename.c_str(), "w");
if (out == NULL) {
fprintf(stderr, "Unable to open file for write: %s\n", cppFilename.c_str());
return 1;
}
errorCount = android::stats_log_api_gen::write_stats_log_cpp(
out, atoms, attributionDecl);
fclose(out);
}
// Write the .h file
if (headerFilename.size() != 0) {
FILE* out = fopen(headerFilename.c_str(), "w");
if (out == NULL) {
fprintf(stderr, "Unable to open file for write: %s\n", headerFilename.c_str());
return 1;
}
errorCount = android::stats_log_api_gen::write_stats_log_header(
out, atoms, attributionDecl);
fclose(out);
}
// Write the .java file
if (javaFilename.size() != 0) {
FILE* out = fopen(javaFilename.c_str(), "w");
if (out == NULL) {
fprintf(stderr, "Unable to open file for write: %s\n", javaFilename.c_str());
return 1;
}
errorCount = android::stats_log_api_gen::write_stats_log_java(
out, atoms, attributionDecl);
fclose(out);
}
// Write the jni file
if (jniFilename.size() != 0) {
FILE* out = fopen(jniFilename.c_str(), "w");
if (out == NULL) {
fprintf(stderr, "Unable to open file for write: %s\n", jniFilename.c_str());
return 1;
}
errorCount = android::stats_log_api_gen::write_stats_log_jni(
out, atoms, attributionDecl);
fclose(out);
}
return 0;
}
}
}
/**
* Main.
*/
int
main(int argc, char const*const* argv)
{
GOOGLE_PROTOBUF_VERIFY_VERSION;
return android::stats_log_api_gen::run(argc, argv);
}